The atomic number of an element is defined as the number of protons in the nucleus of its atom. The nucleus houses very heavy neutrons with no electric charge, and comparatively light protons with positive elec
What elements on the periodic table are gases?Gases:A gas is one of the states of matter; the others are solids, liquids, and plasma. Gases expand or compress to fill any volume. Many are odorless although hydrogen sulfide smells like rotten eggs....
解析 A核心短语/词汇:help sb./ sth. (to) do sth. 帮助某人/某物做某事句子译文:氧气是唯一的助燃气体吗? 本题考查定语从句。___helps fire burn 用来修饰之前的名词gas, 该从句的引导词在定语从句中做主语,不能省略,先行词有only 修饰时不能用which; what 不能引导定语从句,故选项A符合题意。反馈...
People select romantic partners based on blood type and different blood groups are associated with different personalities. Neil In this programme we’ll be finding out all about blood – why humans have different blood types and whet...
Digital generated image of solar panel system standing on circle with grass and flowers on blue background A net-zero gainof greenhouse gases (GHG) in the atmosphere would be achieved when the level of GHG emissions released into the atmosphere is equal to the level of emissions that are remo...
解析 C 关系代词what在这里引导一个名词性从句作to be的表语,同时what在表语从句中又为is的表语成分,这类语法结构还有,如:Show what you have written.(把你所写的给我们看看)和She is not what she was a few years ago.(她可不是几年前的她了)。其他选项均不能表示这种语法关系。
“good citizen” in the world. Another way of putting it is that we want Claude to be helpful, honest, and harmless. Among other things, we do this through our Constitutional AI and character training: methods where we decide on a set of preferred behaviors and then train Claude to ...
There is a dose-response relationship between the volume of oxygen administered by SAPO and the rate of ROSC after prolonged cardiac arrest. Thirty cc/kg of UPBH, equivalent to 5.4ml 02/kg, appeared optimal in this model.doi:10.1016/0735-1097(95)92332-YNorman A. Paradis...
WHERE IS CHAUVIN NOW? Chauvin, who has been free on bail for the last several months, was handcuffed immediately after the verdicts were read and was taken into custody. A sheriff's deputy escorted him out of the courtroom through an interior door. ...
Themodern periodic tableis very similar to Mendeleev's table, but elements today are ordered by increasingatomic number, which reflects the number ofprotonsin an atom. There aren't any "undiscovered" elements, althoughnew elementscan be created that have even higher numbers of protons. What Are ...